fast-import: do not call diff_delta() with empty buffer
[git] / version.c
1 #include "git-compat-util.h"
2 #include "version.h"
3 #include "strbuf.h"
4
5 const char git_version_string[] = GIT_VERSION;
6 const char git_built_from_commit_string[] = GIT_BUILT_FROM_COMMIT;
7
8 const char *git_user_agent(void)
9 {
10         static const char *agent = NULL;
11
12         if (!agent) {
13                 agent = getenv("GIT_USER_AGENT");
14                 if (!agent)
15                         agent = GIT_USER_AGENT;
16         }
17
18         return agent;
19 }
20
21 const char *git_user_agent_sanitized(void)
22 {
23         static const char *agent = NULL;
24
25         if (!agent) {
26                 struct strbuf buf = STRBUF_INIT;
27                 int i;
28
29                 strbuf_addstr(&buf, git_user_agent());
30                 strbuf_trim(&buf);
31                 for (i = 0; i < buf.len; i++) {
32                         if (buf.buf[i] <= 32 || buf.buf[i] >= 127)
33                                 buf.buf[i] = '.';
34                 }
35                 agent = buf.buf;
36         }
37
38         return agent;
39 }